JFR allows recordings to be started with a delay in the following manner:

1. java -XX:StartFlightRecording:delay=<timespan>
2. jcmd JFR.start delay=<timespan>
3. Recording::scheduleStart(Duration);

This works fine, but most of the time recordings are not started with a delay, which means two unneessary threads are created when JFR is initialized, adding footprint and slowing down both startup and shudown.